planning our Le Mans trip and my concern is if I should order parking (Blue) ticket beforehand or  are the (non-numbered) parking tickets usually still available on-site on Friday afternoon?
I would hate to order one from ACO just to find out that I will not get it in time before leaving to Le Mans, so I would prefer to do this 'face-to-face'... I believe the dead-line for any ticket orders  from ACO was somewhere around early/mid May?